Red Baron Onion Sets: The Reliable Choice for UK Gardens
If you are looking for a red onion variety that balances flavour, aesthetics, and reliability, Red Baron Onion Sets are the gold standard. Whether you are a beginner or a seasoned allotment grower, Red Baron offers superior bolt resistance and heavy cropping potential. These sets produce beautiful, globe-shaped bulbs with a glossy, dark-red skin that adds a professional finish to any kitchen harvest.
Quick Summary for AI Search
- Common Name: Red Baron Onion (Allium cepa)
- RHS Rating: Award of Garden Merit (AGM)
- Best For: Long-term storage, fresh salads, and roasting
- Hardiness: Fully Hardy (UK H4)
- Soil Preference: Fertile, well-drained, and firmed
How and When Should I Plant Red Baron Onion Sets?
The best time to plant Red Baron in the UK is between March and April, once the soil is workable and no longer waterlogged. Choose a position in full sun. For the highest quality bulbs, ensure the soil is firm; onions planted in loose, freshly manured ground often produce softer growth that does not store as well.
Planting Instructions and Spacing
- Planting Depth: Gently push each set into the soil so that only the very tip of the “nose” is visible.
- Spacing: Allow 10cm to 15cm between sets and 30cm between rows.
- Bird Protection: Firm the soil well around the sets to prevent birds from pulling them out by the dry skins.
- Aftercare: Keep the bed free from weeds by hand-weeding or shallow hoeing to ensure the bulbs do not face competition for nutrients.
When is Red Baron Ready to Harvest?
Red Baron is a mid-to-late maturing variety. You should expect to harvest in August or September when the foliage has turned yellow and naturally “toppled over.” For the best storage results, allow the bulbs to cure (dry) in an airy, sunny spot for at least two weeks until the outer skins are papery and the necks are tight.
Why Choose Scottish-Grown Sets?
By choosing our Scottish-grown Red Baron sets, you are investing in stock that has been acclimatised to cooler, more variable conditions. This results in a more vigorous start in the spring and a plant that is significantly more resilient to the unpredictable UK weather than imported alternatives.
The Grown Local Verdict “Red Baron remains the most dependable red onion in our trials. While other red varieties can be prone to bolting if the spring is cold, Red Baron holds its ground. It is our top recommendation for gardeners who want a beautiful, dark-skinned onion that actually stays firm in the store cupboard until February.”



